PGY-MMC SD/SDIO/eMMC Electrical Validation & Protocol Decode Software

eMMC and SD, SDIO Electrical Validation and Protocol Decode Software offers electrical measurements compliance testing, and protocol decoding as specified in eMMC and SD, SDIO specification. PGY-eMMC and SD, SDIO Electrical validation and Protocol decode software run in Tektronix Oscilloscope provide electrical measurements and protocol decode at the click of a button. This allows engineers quickly check for eMMC and SD, SDIO compliance, and flexibility to debug the failure. In addition to this engineers can decode the command and respond to debugging the communication. PGY-eMMC SD, SDIO takes advantage of digital channels of MSO and provides the decoding of data lines.

PGY-MMC SD/SDIO/eMMC Electrical Validation & Protocol Decode Software


The product features are as follows:

  • eMMC and SD (UHS-I) electrical measurements and Protocol testing software conform to eMMC version 4.51 and 5.0 and SD version 3.01 specification
  • Supports SDR and DDR and Boot mode for electrical measurement and Protocol Decode
  • eMMC/SD/SDIO Protocol Aware Trigger features
  • The software automatically identifies the read and write operations using CMD and applies the electrical parameter limits accordingly.
  • Detail View provides efficient debugging capability by correlating the analog waveform, protocol messages, and electrical measurements for each protocol packet in a single view
  • Protocol View lists the protocol activities in the sequential form to assist designers to know the host and card transactions
  • Timestamp at the end of the command token and time stamp at beginning of the response token in Protocol View enables the designer to comply with specifications and locate any anomaly in timing between host and card
  • The software displays the details of command and response in Protocol View and list the errors messages in card status for quick analysis
  • Supports cursor-based measurements for manual custom measurements
  • Ability to store the eMMC and SD protocol data in CSV and txt format
  • Utility features like zoom, undo, and fit to screen for easy maneuvering of the waveforms while debugging the cause of the problem in Detail View makes it easy to use tool
  • The software seamlessly integrates with Tektronix windows based oscilloscope and supports live signal analysis using live channels of the oscilloscope
  • Supports data analysis for long record length and more acquisition memory of oscilloscope enables analysis of protocol events for longer duration
  • Report generation in pdf format
  • Supports WFM and isf file formats of Tektronix oscilloscope for offline analysis


The application areas are as follows:

  • Protocol Analysis
  • eMMC and SD (UHS-I) Electrical Compliance Test ( Supports eMMC4.42, 4.51 and 5.0 & SD3.01)
  • Correlation of Analog waveform, Protocol activities, and Electrical Measurements

Seamless Integration with Oscilloscope

PGY- MMC and SD Electrical Validation and Protocol Decode Software run inside the Tektronix high-performance windows oscilloscopes. Automatically imports the data from oscilloscopes live channels. Also supports Tektronix .wfm and .isf file formats. This enables live and offline testing of eMMC and SD Signals.

  • Provides the flexibility to select the type of Card interface to be tested and related Bus speed modes
  • Flexibility select necessary or all electrical measurements
  • Save and recall application setup for repetitive testing at different times
  • Supports single and continuous test mode using oscilloscope live data
  • Online help

eMMC/SD/SDIO Protocol Aware

For efficient testing and debugging of eMMC/SD/SDIO, it is important to capture signals in the right condition. PGY-MMCSD software provides protocol aware triggering along the serial pattern trigger option of the oscilloscope to capture signals at specific events in the CMD line.

  • Flexibility to trigger on command or response
  • Offers all the standard triggers patterns with command and Response
  • Flexibility to edit trigger pattern

Automated Electrical Validation and Protocol Decode Software

As per the specification of eMMC and SD, the measurement limits are different for reading and writing operations. The PGY-MMC-SD measurement algorithms automatically find the read and write operations and validate with the respective limits. This enables you to save time in identifying the read and write operation and isolating any compliance issues.

  • Lists electrical measurements with mean, minimum, and maximum values measured for the entire acquired waveform
  • Indicates if the measurement exceeds the min or max limits by the orange color
  • The lower and Upper limits of the electrical measurements are compared against measured values
  • Supports Electrical Measurements as per eMMC 4.41 and 4.51 and UHS3.1 Specification
  • Automated identification read and write operation and apply electrical limits as per eMMC and UHS-I specification

Timing Parameters between CMD, Response, and Data

eMMC specifies the minimum and maximum cycles to present between the host and device to ensure interoperability. PGY-MMC-SD analyzes the data for these specifications and offers results.

Protocol View

PGY-MMC-SD software lists all the protocol activity between the host and card. Engineers can now quickly view the command and its corresponding response from the card. Selected protocol activity details are listed on the right side of the list table. Now Engineers can know the errors reported by card or any other message to host without
struggling to know the content of each message.

Characterization of PHY layer by custom limit setup

PGY-MMC-SD is not just for standard electrical compliance testing, you can also vary the limits and test your device with custom limits. The intuitive limits and reference level setup allows you to configure the limits and reference levels for your custom testing needs. This enables you to test your device beyond the specification and characterize it.

Powerful Debug environment: Detail view

In Detail View, engineers can view the analog waveform, details of the protocol, and electrical measurements in a single view. If there is any failure in electrical measurement or error in protocol messages, designers can quickly correlate the protocol data with analog waveforms. These protocol errors can be caused due to the failure in electrical measurements. Users can select any row in the detail view; the corresponding analog waveform will be zoomed in and displayed. In the same row, engineers can view all the electrical measurements corresponding to the selected row. Utility features such as zoom, cursors, and markers make custom measurements while debugging.

Detail view provides the following capabilities:

  • Plots the acquired waveform in the waveform view window
  • Lists all decoded command and response tokens in each row in the decode table
  • Identifies of type of command and response for easy protocol interpretation
  • Lists respective electrical measurements for command and response for each row
  • Selected Protocol command or response’s related analog waveform is plotted in a window
  • Bus Diagram view overlays protocol data for the selected row along with waveform
  • Snap button enables storing selected waveform window for report generation purpose
  • Zoom, fit to screen, pan, undo, vertical and horizontal cursors enables quick analysis and measurement of electrical signals

Industry First Decoding of CMD and data Signals

PGY-MMC-SD leverages powerful capabilities of Digital Channels of MSO70000/5000 series oscilloscope to provide industry decoding of data signals in eMMC and UHS-I.

Protocol Test

PGY-MMC-SD software automatically checks for Protocol Integrity. This allows a very easy method of ensuring protocol packets are as per protocol specifications of eMMC, and UHS-I Specifications.


Electrical measurements for eMMC and SD Bus

eMMC-HS DDR Measurements Clock Frequency Clock Low Time
Clock Rise Time Clock Rise Time
Clock Duty Cycle Clock Duty Cycle
Output Data Falling Time Output Data Falling Time
Input Setup Time Input Setup Time
Input Data Rising Time Input Data Falling Time
eMMC-HS SDR Measurements Clock Frequency Clock Low Time
Clock Rise Time Clock Fall Time
Output Data Falling Time Output Data Rising Time
Input Setup Time Output Delay Time
Input Data Falling Time
eMMC HS-BC Measurements Clock Frequency Clock Low Time
Clock Rise Time Clock Fall Time
Clock Duty Cycle Output Setup Time
Output Hold Time Output Delay Time
Input Setup Time Input Hold Time
eMMC HS-200 Measurements Clock Period Data Read Setup Time
Clock Rise Time Data Read Hold Time
Clock Fall Time Command Output Delay
Clock Duty Cycle Data Write-Output Delay
Response Setup Time Command Valid Window
Response Hold Time Data Write Valid Window
SD-DDR Measurements Clock Frequency Clock Low Time
Clock Rise Time Clock Fall Time
Clock Duty Cycle Output Setup Time
Output Delay Time Input Hold Time
Input Setup Time
Bus Speed Supports all Data speeds;
Limited by oscilloscope Bandwidth
Protocol Decide Protocol View and Detail View
Waveforms Plots Analog signals plotted with
Bus diagram in for Protocol format
for correlation of PHY information
to Protocol data
Report Generation PDF format report generation
Export of Data Export to CSV and TXT format
Oscilloscope file format WFM and ISF file format of
Tektronix oscilloscope


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